Ionia Weather Forecast
- 43
- 52
Chance Rain Showers
- 47
- 66
Mostly Cloudy
- 59
- 79
Chance Rain Showers
- 54
- 76
Slight Chance Rain Showers
- 66
- 84
Slight Chance Thunderstorms
- 63
- 87
Chance Rain Showers
Today 14 May Ontario
A chance of Showers late this Morning, then a chance of Showers with patchy drizzle early this afternoon. Showers likely with patchy drizzle late. Cool with Highs Ranging from the mid 40s on the Hilltops to the lower 50s across the lower Elevations. Northwest Winds 10 Mph or less. Chance of rain 60 percent.
Tonight 14 May Ontario
Cloudy. A chance of Showers with patchy drizzle in the Evening, then a chance of Showers overnight. Lows in the lower 40s. Light Winds, becoming northwest 5 to 10 Mph. Chance of rain 50 percent.
Ionia Temperature Statistics
May Temperature
Rochester, Greater Rochester International Airport (15.5 miles)
Lowest 12 May, 2026
33.1 °FAverage May
48.8 °FHighest 4 May, 2026
74.6 °F
Climate (2021–Present)
Rochester, Greater Rochester International Airport (15.5 miles)
Average Low 2021–2026
42.3 °FAverage 2021–2026
50.8 °FAverage High 2021–2026
59.5 °F